Hoeing-machine.



O. F. ULLMAN.

HOEING MACHINE.

APPLICATION HLEIJ MAR. 1. 19:1.

Patented June 5, 1917.

UNITED STATES PATENT onnion.

To all whom it may concern: 1

Be it known that I, Orro FRED ULLMAN,

a resident of Severy, in the county of Greenwood and State of Kansas,have invented certain new and useful Improvements in Hoeing-Machines',of which the following is a description, referring to the accompanyingdrawings, which form a part of this specification. I

1 The object of the invention is to provide a power. driven mechanismadapted to hoe ground, duplicating the strokes and motions ordinarilygiven to a hand hoe for like Work.

In the drawings: Figure 1 is a top view ofthe machine, with portionsof'the guiding arms and lever removed for lack of space. Fig. 2 is aside elevation of the machine seen in Fig. 1. Fig. 3 is a detailed faceview of the hub of the large master wheel seen in Fig. 2. Fig. 1 is asectional detailed drawing of portions of the master wheel, shaft andframe. Fig. 5 is a reduced drawing of the machine as seen in Fig. 2showing the operator guiding the machine as it is being driven over thefield. Fig. 6 is a detailed face view of sectional portions of thecombination of parts comprising the lever device controlling the raisingand lowering of the rear end of the machine to govern the desired depthof the hoes en.- trance in the ground. Fig. 7 is a top view of a portionof Fig. 6. Fig. 8 shows sectional details of some of the parts shown inimilar numerals of reference indicate corresponding arts in all thefigures of the drawings. Re erring to the drawings, in Figs. 1, 2 and 5is shown my improved hoeing machine in operation. At 10 is seen theframe of the machine. Mounted upon cross bars of the frame 10 is seen agas engine I and from the crank shaft 11 thereof, a chain belt 12engages a pulley at J which is attached to a shaft K housed at 13, 13 tothe side rails of frame 10. This shaft K is in two arts, an intermediateclutch R operated by the hand lever S being introduced between same.

Through gears 14, 15, 16, 17 the engine L driven shaft K transmits powerto the main shaft 15 which drives the master wheels L. By means of asecond pulley wheel J on shaft K a chain belt is driven engaging withthe pulley wheel 16 located on a crank shaft 17 which is housed at 18,18 to the side rails of frame 10. The shaft 17 in the drawingsSpecification of Letters 2mm. r mm June 5, 1917, Application filed March1, 1917. Serial No. 151,871. i

is for ed similar to the ""'crank shaft of a six cy mder gas engine,though the number of looped armsmay be varied depending u on the desirednumber of hoe arms emp oyed. In the drawings it will be noted that. sixhoe arms are respectively housed at the SIX looped ploints a, b, c, d,e, f of the shaft 17 Eac hoe arm comprises the handle 19, elbow boxing20 and holder 21 depending therefrom and to which is attached a 0e blade22. The parts 19, 20, 21, are preferably forged or fabricated as onepiece. M lndicates a series of six sets of rocker arms hingedly attachedand mounted on the shaft N which is likewise housed at its ends 23, 23in the frame 10. Each separate hoe arm handle 19 is shown pivotallyattached as at 24 to a. rocker arm M. It will be seen that as the shaft17 is driven the looped points I), (Z, 6, f, 0 will force thecorresponding blades 22 attached thereto to come in sequence to theposition of the blade 22 attached to the looped point a seen in Fig. 2,While the rocker arms M being adapted to swing to and "fro, hold thehandles 19 so that the blades 22 when properly adjusted are pulled intothe ground by similar motion as ordinarily employed in using a hand hoe.The adjustment for cutting depth of the blades 22 is accomplished bylowering or raising the rear section of the frame. A perpendicular shaft.B is housed in a long bearing 0 attached to a cross bar portion offrame 10. The shaft B terminates in a rear caster wheel 25 which rideson the ground.

A lever bar A is provided with a dog 26 operated. by a rod and spring27, said dog engaging a segment ratchet H which is rigidly attached tothe frame 10 to which also is hinged the lever A at 28. In Fig. 8 thetop of shaft B is seen to teigninate in an axle stem 29. Housed on thisstem 29 is a collar F having'a pin E projecting therefrom. The collar Fis heldon to the end of the shaft B by means of the nut G.

Referring to -:Fig. 6 it will be noted that the lever A is provided witha long slot D which houses the headed pin E of the collar F. It will nowbe seen that by raising or 105.

lowering the lever A that the shaft B will move up or down in thebearing C whereby the rear of frame 10 can be lowered toward or raisedfrom the caster wheel 25, thus gaging the cutting depth of the blades22. 11c

.The slot D prevents binding of the pin E during such adjustments.

It, will be. seen .that the caster wheel may swivel since the shaft Bmay turn in the bearing C and collar F, thus the man in Fig. 5 can guidethe machine by. means of the handle or guide arm attached to the sidearms 31, 31 which are fastened to the side rails of the frame 10.

When the blades 22 come in contact with the ground the tendency is topull the maas the machine travels in the direction indicated in Fig. 5.

The machine may be turned to the left or to the right since the wheels Lare ratcheted to the shaft by means of ratchets 0 formed in the outerface of the hub boxing. .The

ratchet O forms a seat for the pin P located in the end of the shaft15*. A spring Q housedon shaft 15 bears at one end against the shaftboxing 32 attached to the frame 10, the other end of spring Q, bearsagainst the hub boxing through a washer R which has an arm S rigidlyattached thereto and which is adapted to slide with the motion of themachine in a guide T on the frame 10. This arm S has a slot throughwhich a screw headed pin 33 is passed into the guide T to hold the arm Sin proper place. It will be seen that the tendency of spring Q istoforce the ratchet seat 0 against the driving pin P. It will beunderstood that any power means may be employed .and such othermodifications employed as lie within the scope of the appended claims.

Having fully described my invention what I now claim as new and desireto secure by Letters Patent is;

1. In a hoeing machine, a frame, an engine mounted thereupon, a mainshaft housed in said frame, master wheels mounted on said shaft, a crankshaft housed in said frame, said shaft having a plurality of loopedarms; gears driven by said engine for imparting rotary movement to saidmain and crank shafts; a shaft housed in said framef and a pluralityof'hingedl mounted rocker arms attached to said shaft; a series of hoearms, each comprising a handle piv- -otally attached to one of saidrocker arms,

an elbow boxing engaging a looped arm of the crank shaft and a holderdepending therefrom and'a hoe blade attached to said holder, each elbowboxing of each of said hoe arms being adapted to follow the revolutionof said crank shaft whereby the series of hoe blades are broughtconsecutively to an operative hoeing position adapted to enter andcultivate ground in the manner as specified; and a lever operating witha perpendicular shaft housed to the frame to raise or lower the rear'ofsaid frame to control the depth of penetration of said hoe blades.

2. In a hoeing machine, a frame, an engine mounted thereupon, a mainshaft housed in said frame, master wheels mounted on said shaft, a crankshaft housed in said frame, said shaft having a plurality of loopedarms; gears driven by said engine for imparting rotary movement to saidmain and crank shafts; a shaft housed in said frame and a plurality ofhingedly mounted rocker arms attached to said shaft; a series of hoearms, each comprising av handle pivotally attached to one of said rockerarms, an elbow boxing engaging a looped arm of the crank shaft and aholder depending therefrom and a hoe blade attached to said holder, eachelbow boxing of each of said hoe arms being adapted to follow therevolution of said crank shaft whereby the series of hoe blades arebrought consecutively to 'an operative hoeing position adapted to enterand cultivate ground in the manner as specified; and a lever operatingwith a perpendicular shaft housed to the frame to raise or lower therear of said frame to control the depth of penetration of said hoeblades; a swiveling caster wheel attached to said perpendicular shaft,whereby the operator may control the direction of the machine duringoperation thereof; and a ban J F. HAYES.

